armada-xp-db-dxbc2.dts

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    1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * Device Tree file for DB-DXBC2 board
    4  *
    5  * Copyright (C) 2016 Allied Telesis Labs
    6  *
    7  * Based on armada-xp-db.dts
    8  *
    9  * Note: this Device Tree assumes that the bootloader has remapped the
   10  * internal registers to 0xf1000000 (instead of the default
   11  * 0xd0000000). The 0xf1000000 is the default used by the recent,
   12  * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
   13  * boards were delivered with an older version of the bootloader that
   14  * left internal registers mapped at 0xd0000000. If you are in this
   15  * situation, you should either update your bootloader (preferred
   16  * solution) or the below Device Tree should be adjusted.
   17  */
   18 
   19 /dts-v1/;
   20 #include "armada-xp-98dx4251.dtsi"
   21 
   22 / {
   23         model = "Marvell Bobcat2 Evaluation Board";
   24         compatible = "marvell,db-dxbc2", "marvell,armadaxp-98dx4251", "marvell,armada-370-xp";
   25 
   26         chosen {
   27                 bootargs = "console=ttyS0,115200 earlyprintk";
   28         };
   29 
   30         memory {
   31                 device_type = "memory";
   32                 reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
   33         };
   34 
   35 };
   36 
   37 &devbus_bootcs {
   38         status = "okay";
   39 
   40         /* Device Bus parameters are required */
   41 
   42         /* Read parameters */
   43         devbus,bus-width    = <16>;
   44         devbus,turn-off-ps  = <60000>;
   45         devbus,badr-skew-ps = <0>;
   46         devbus,acc-first-ps = <124000>;
   47         devbus,acc-next-ps  = <248000>;
   48         devbus,rd-setup-ps  = <0>;
   49         devbus,rd-hold-ps   = <0>;
   50 
   51         /* Write parameters */
   52         devbus,sync-enable = <0>;
   53         devbus,wr-high-ps  = <60000>;
   54         devbus,wr-low-ps   = <60000>;
   55         devbus,ale-wr-ps   = <60000>;
   56 };
   57 
   58 &i2c0 {
   59         clock-frequency = <100000>;
   60         status = "okay";
   61 };
   62 
   63 &uart0 {
   64         status = "okay";
   65 };
   66 
   67 &uart1 {
   68         status = "okay";
   69 };
   70 
   71 &nand_controller {
   72         status = "okay";
   73 
   74         nand@0 {
   75                 reg = <0>;
   76                 label = "pxa3xx_nand-0";
   77                 nand-rb = <0>;
   78                 marvell,nand-keep-config;
   79                 nand-on-flash-bbt;
   80                 nand-ecc-strength = <4>;
   81                 nand-ecc-step-size = <512>;
   82         };
   83 };
   84 
   85 &sdio {
   86         pinctrl-0 = <&sdio_pins>;
   87         pinctrl-names = "default";
   88         status = "okay";
   89         /* No CD or WP GPIOs */
   90         broken-cd;
   91 };
   92 
   93 &spi0 {
   94         status = "okay";
   95 
   96         flash@0 {
   97                 #address-cells = <1>;
   98                 #size-cells = <1>;
   99                 compatible = "m25p64";
  100                 reg = <0>; /* Chip select 0 */
  101                 spi-max-frequency = <20000000>;
  102                 m25p,fast-read;
  103 
  104                 partition@u-boot {
  105                         reg = <0x00000000 0x00100000>;
  106                         label = "u-boot";
  107                 };
  108                 partition@u-boot-env {
  109                         reg = <0x00100000 0x00040000>;
  110                         label = "u-boot-env";
  111                 };
  112                 partition@unused {
  113                         reg = <0x00140000 0x00ec0000>;
  114                         label = "unused";
  115                 };
  116 
  117         };
  118 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/src/arm/armada-xp-db-dxbc2.dts

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sys/contrib/device-tree/src/arm/armada-xp-db-dxbc2.dts